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Delay part for lubricating oil
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Patent number 5,161,643
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Issue date Nov 10, 1992
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Dr. Ing. h.c.F. Porsche AG
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Herbert Ampferer
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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Torsional-vibration damper
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Patent number 5,148,719
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Issue date Sep 22, 1992
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Dr. Ing. h.c.F. Porsche AG
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Herbert Ampferer
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Cylinder block and crankcase
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Patent number 4,974,569
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Issue date Dec 4, 1990
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Dr. Ing. h.c.F. Porsche AG
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Herbert Ampferer
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Internal combustion engine
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Patent number 4,883,031
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Issue date Nov 28, 1989
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Dr. Ing. h.c.F. Porsche AG
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Herbert Ampferer
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Chain tensioner
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Patent number 4,828,536
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Issue date May 9, 1989
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Dr. Ing. h.c.F. Porsche Aktiengesellschaft
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Herbert Ampferer
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Actuating arrangement
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Patent number 4,823,748
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Issue date Apr 25, 1989
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Dr. Ing. h.c.F. Porsche Aktiengesellschaft
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Herbert Ampferer
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Multi-cylinder internal combustion engine
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Patent number 4,759,317
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Issue date Jul 26, 1988
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Dr. Ing. h.c.F. Porsche Aktiengesellschaft
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Herbert Ampferer
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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Oil pressure regulating valve
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Patent number 4,657,043
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Issue date Apr 14, 1987
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Dr. Ing. h.c.F. Porsche Aktiengesellschaft
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Herbert Ampferer
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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